Engine



Mar. [27, 1923.

Maf-

J. R. WARREN ENGINE V -Flled Jun@ 20,l 1921 I 5 sheets-sheet; '2

Patented lidar. 2'?, 1923.

NETE@ STATES intatta Parent orifice,

JOHN R. WARREN. F GRAND RAPIDS, MICHIGAN', SSIGNOR TO SAID JOHN R.

WRREN, DONALD J. CAWIPBELL` OF MUSKEGON HEIGHTS, MICHIGAN.

CHARLES E. JGHNSON, PAUL R. BEARDSLEY, AND CARL P. DAMN, ALL 0F MUSKEGON, MICHIGAN, TRUSTEES.

ENGINE.

' I application ined :fune 2o, 192i.

To all "whom it may con-cern:

Be it known that JoHN R. WARREN, a citizen of the United States, residing at Grand Rapids, in the county of Kent and @i State of Michigan, have invented new and useful'mprovements in Engines, of which the following is a specification.

The present invention relates to engines; andits object is, generally, to provide an lo improved valve mechanism wherein a rotary valve, although sufficiently tight to prevent leakage, shall not be subject to binding and sticking occasioned b v heatingr or otherwise; and further and more partielllarly, to provide a one-piece valve-casing for the rotary valve whereby said end may be attained and further, to provide a one-piece cylinder and valve-casingrg and further, to provide improved and economical methods for constructing such parts.

These and any other objects hereinafter appearing are attained by, and the invention nds preferable embodiment in, the structure particularly described in the body of as this speciication and illustrated by the aecompanyingdrawings, in which:-

Figure 1 is a side view of an internalcombustion engine to which my valve mechanism is applied, vcertain parts being broken away;

figure 2 is a transverse sectional view thereof taken on a vertical plane corresponding to line 2-2 ofFigure l;

Figure 3 is a, view in perspective of a bushing or sleeve surrounding the valve;

Figure 4 is a side view of a block or member comprising three of the engines cylinders and the valve-casing; and

Fig-u re 5 is an end view of the same.

In the embodiment of my invention chosen for illustration by the drawings and for detailed description in the body of this specitication, the invention is shown in connection with a four-cycle type internal-combustion engine having six cylinders, 1, 2 and 3 thereof appearing in diametrical longitudinel section in Figure 1. These cylinders have pistons 4, 5, 6 furnished with connect- A ing rods 7, 8, 9 for operating the cranks 10, 50 11, 12 respectively, on the crank shaft or engine shaft 13..` At their upper ends, the

Serial No. 472,797.

cylinders have ports 1&1, 15, 16 respectively for admitting the operating uid thereinto and for expelling the products of combustion therefrom. The rotary valve 17 for controlling such admission of ldie fluid to the cylinders and for permit-ting the expulsion of such products therefrom rotates in a bearing or valve chamber in a valve-casing, designated generally 18, having ports communicating with `the cylinders through their ports 14. 15, 16 respectively. This valve-casimer and the three cylinders are in the construction illust-rated all comprised in a one-picce block or member 20, aS particularly shown in Figure 2, the valve-casing part of said member being split at one sideat 2lto form a valve-casing portion 22 adjacent the cylinders and another valvecasing portion 23 remote therefrom which is secured to the frame 24 of the engine as by bolts 25, said valve-casing portions adja cent the gap or split 21 being thus slightly separated. inasmuch as the lower part of the block or member 20 comprising the cylinders and the valve-casin, portion 22 has a slight longitudinal movement relatively to the frame 24 and valve-casing portion 23., (permitted b said separation of the casing portions at the gap or split 21 and by the resiliency of the metal of which Said member or block is formed) it will be seen that the pressure in the cylinders tightens the y valve casing' on the valve. As shown, means are provided to prevent leakage between the valve-casinar portions 22 and 23 at said gap or split 2l, such means beingA preferably a bushing or sleeve 26 contained in the valvecasingI and surroundingr the rotary valve and attendingr over said gap or split 21. This bushing has openings 27 which register with the cylinders ports respectively. To provide for the expanding and contracting of the bushing;` a series of slits 28 are cut therethrough has shown in Figure 3.

rThe val-ve 17 is hollow, havmg lonwitudinally extending passages 29, 3() to which the fluid is supplied from a vent 31 in the block Y or member 20, the fluid thence passing through a series of inlets 32 through the valves wall and to each cylinders port through diametrically opposite openings 33,

3l., in lie valves walL the precincts of eemlonslion being discharged from each cylinder through (liametrically Opposite outlels b5, i6 through the valves wall and into 5 izhe longitudinally extendingr passages 3T, 38 opening al the. ends of the valve into exlimiet pipes 39. These inlets, openings and` enti-lele lirougli the ralves wall are sodisi e "iliirijy el tire vzilve that the se- I lo :and exliamshfroin the is pi'nperly timed. Figure l. liieiigfines crank es e skew grem- -lll meshing with n s il in (Line. veriuzil shalt i2 liuwvim ilie lliirrl anni ioni-lli cylinders, Said sini-ii linving sliew geni i3 niesliinr will; ai like gees' lil driving the rotary "ai ve l?. The cylinders endl valve-easing portions 2i?, and 23 lieve a continuous Water jacket formell in lie liloek or member 20? the irnter-eoneining space being designated 4.5, Weiler being supplied by the pipe 46 and discharged by ilie pipe el?. A Siphon pipe 5@ for drawing-lie waiter from the interior nl: inlwe-eeing portion 23 and an air pipe 5l are sliewn in lliignre 2. Openings lor 'lire cylinders Spark plugs are indimiseriV el; 52 aand e lubricating Wick is shown sie i-lie valve-easing performed in one piece and e; nien preferably formell il-ii ai enorm., the ivliole Minimi-Hy inanini'aielnreil :is properly machined or boreal, i 2l niej; lie merle by @nei-inl; ifi-nil llink@ llins 'e pnsilinn 0i' lie wili'eeaising pei"- nnil eennel; become iniaen s seifiiring ye provided is rigidly secured ilo 1 rlich. lee-llas /E efljeoenl; e n resilieniJ periien (alie oylinrlers enel ij fi i ming seid. perilsien re- .,s seesien el; 56 es shawn in Y"e i? renien being inienrled lo 'lie pn in lli@ claims, is non, lo lie liniilerl in er by details oi sonstwie-lion in? time perlienler enfiliodlinienl. rtliereoi" illusimi/eil by iaiie drawings er liereinbeiore lleeeriliell ii f l, in en engine; iframe; e, member eenieylinlfler. lengilndinsilly movable "l freine sind comprising als@ onepieee eplii: vailveeasing secured lo-.lne

Lwier; e. val-re rotatable in sai valve-easing and adapted to open and closeA smid port. v

2. In :in engine; e, fra-me; a, member comprising a c vlimler longitudinalljlY movable relatively to the frame and comprising also a one-piece if'zilve-casing haring :1A port coninnmicnting' with the eyliml'er and being split to form :i vulve-casing porlion :nl iauen lie cylinder nml :mother valve-raising porlimi which is sic-marmi lo lelie freine; ai. mire inlutiilile in szsiii railw-msing :nul auliipleci le open amil close sniel perl5.

2l. in :in engine; n freine; :i one-pieee member comprising si. cilinder longfimnlinii-.ily moraible. relatively lo tlie freine enel comprising also a valve-easing heffing n pori. communicating with ille cylinder und being split'to form emilie-easing portion ndjeeen the cylinder and another valve-easing poi'- tion which is seeured to the frame; a. valve rotatable in said valve-casing and adapten te open anal close said port.

4l. In :in engine; ziranie; a. member com prising eeylindeilongitudinally movable relatively to the freine' and comprising also e, one-piece valve-casing having iii-,port @our inunienting willi the cylinder and being spli to form a'wlveeasng portion adjaeen@ lie cylinder indi i valveeesing portieri remote lzlieieirein wliieli is seemed to ille 'iiainieg n vnlre roliiinble in seid. vnlre-easingsr sind allepleil le @pen and viese Seidl pori.

5. ln en engine; ai, lrnnie; e meine-er @ompiieing ai eyliniler lenwiliiilinelly meriilile relniively lo lire mail eeniprising also n onepieee eiili i.' -f i553? secured te lie freine anni lieringg u on?, eoniinnnieeling will; lie eylineler; valve in saisi Velreeasing i l le @een enel eine@ snirl perl; l relire-easing L valve-easing ingl Willi seirl prising e il relai'ively "Le lime i e iinepieee i; innnieeii'ig' ene ejflinrler lieir spli'ff, lo #ferm n Wire-easing periinn erlieeeni; lie eylineler valve-easing pori, eemperfion wliieli is .secured la@ lie iframe;

@eine releielile in Seial valve-easing nml l1 lin en engine; ai freine; e one-piece member eeinpiising cylinder lnngilsnlilinelly movable reliiivelp/ le the Ere-ine and comprising else e relire-easing lim/ing eport cominnnieeliiig Willi @he cylinder and being split lo-orm e Velvefeasing portion erliecent the cylinder and another valve-casing portion Which is secured to the frame; a valve rotatable in said valve-casing and adapted to open and close said port; a bushing between the valve and valve-casing extending over the split in the valve-casing and having an opening registering with said port.

8. In an engine; a frame; a member comprising a cylinder longitudinally movable relatively to the frame and comprising also a one-piece valve-casing having a port com municating with the cylinder and being split to forni a valve-casing portion adjacent the cylinder and a valve-casing portion remote therefrom which is secured to the frame; a valve rotatable in said valve-casing and adapted to open and close said port; a bushing between the valve and valve-easing extending' over the split in the valve-casing and having an opening registering with said port.

9. In an engine; avfranie; 'a member comprising a cylinder longitudinally movable relatively to the frame and comprising also a one-piece valve-casing having a port communicating with the cylinder and being split to form a valve-casing portion adjacent the cylinder and another valve-casing portion which is secured to the frame, the cylinder and valve-casing portions having a continnous water jacket formed in said member; a valve rotatable in said valve-casing and adapted to open and close said port; a bushing between the valve and valve-casing extending over the split in the valve-easing and having an opening registering with said port.

10` In an engine; a frame; a member comprising a cylinder' longitudinally movable relatively to the frame in a bearing thereon and comprising also a one-piece split valvecasing secured to the trame and having a port communicating with the cylinder, said member having a resilient portion intermediate the cylinder and the valve-easing; a valve rotatable in said valve-easing and adapted to open and close said port..

. 11. ln an engine; a frame: a member comprising a cylinder lonritudinally movable relatively to the frame in a bearing thereon and comprising also a one-piece split. valvecasing secured to the frame and having a port communicating with the cylinder. said member being reduced in cross section intermediate the cylinder and the valve-casing; a valve rotatable in said valve-casing and adapted to open and close said port.

In testimon whereof I have hereunto set my hand at rand Rapids, Michigan, this 15th day of June, 1921.

JOHN R. VARREN. 

